Activity: Build your own cell membrane Name:_______________________

Introduction: The cell membrane is made up of a phospholipid bilayer with proteins and other components, such as cholesterol embedded In this activity we are going to construct a model of the cell membrane, using a computer simulation.

Instructions:1. Go to http://www.wisc-online.com/objects/ViewObject.aspx?ID=AP1101 2. Follow the instructions to construct a cell membrane.

Answer the following questions:1. Define the term lipid: 2. List the different types of proteins that are found in the membrane___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________3. Define hydrophilic and hydrophobicHydrophilic: _____________________________________________________________________________________________________________________________________________________________________________________________Hydrophobi:

4. What is the function of cholesterol in the phospholipid bilayer?___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

5. label a diagram of the cell membrane: